The equation of the line y = mx + b can be used to calculate the slope of a line m = ( y₂ - y₁ ) / ( x₂ - x₁ ) that passes through two points.
A line is defined as a curve showing the shortest distance between 2 points.
Here,
The slope of the line passing through two points ( x₁, y₁ ) and ( x₂, y₂ ) is given as :
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
The line that connects two locations has the equation y = mx + b, where m is the slope of the line and b is a constant.
We can find b, using the x, y, and m values in the equation of a line to obtain the y-intercept.
Therefore, the Slope of the line can be given as m = ( y₂ - y₁ ) / ( x₂ - x₁ ) and equation of line y = mx +b.
Hence, option A is correct.
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Answer:
A or Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
Step-by-step explanation:
For each pair of functions, find (g⁰f)(x) and (f ⁰g)(x) . f(x)=x²-2, g(x)=4 x+1
For the pair of functions, (g⁰f)(x) is 4 x ² - 7 and (f ⁰g)(x) is 16 x ² + 8 x - 1
The given questions asks to find (g⁰f)(x) and (f ⁰g)(x), that is, function of g in terms of f(x) and function of f in terms of g(x).
To find : (g⁰f)(x)
Step 1 : Write g (x)
=> g (x) = 4 x + 1
Step 2 : Put f (x) in place of x in g (x)
=> g (f(x) = 4 ( x ² - 2 ) + 1
=> g (f(x) = 4 x ² - 8 + 1
=> g (f(x) = 4 x ² - 7
=> (g⁰f)(x) = 4 x ² - 7
Similarly,
To find : (f ⁰g)(x)
Step 1 : Write f (x)
=> f (x) = x ² - 2
Step 2 : Put g (x) in place of x in f (x)
=> f (g(x) = ( 4 x + 1 ) ² - 2
=> f (g(x) = 16 x ² + 1 + 8 x -2
=> f (g(x) = 16 x ² + 8 x - 1
=> (f ⁰g)(x) = 16 x ² + 8 x - 1
Therefore, we get for the pair of functions, (g⁰f)(x) as 4 x ² - 7 and (f ⁰g)(x) as 16 x ² + 8 x - 1
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a = 63.5 rounded to 1 DP
b= 5.71 rounded to 2 DP
Find the minimum of a - b
Answer:
57.79
Step-by-step explanation:
Substitute: 63.5-5.71
Calculate the difference: 57.79
Answer: 57.79
For each function, find the inverse and the domain and range of the function and its inverse. Determine whether the inverse is a function. f(x)=-√x
Answer to this question is:
Domain of given function is [0,∞),{x|x≥0}
Range of given function is (-∞,0],{y|y≤0}
Inverse of given function is x²
The domain is all values of x that make the expression defined.The entire range of independent variable values is the domain of a function.
This definition can be stated simply as follows: The domain is the collection of all x-values that can be used to make the function "work" and produce actual y-values.
When choosing the domain, keep in mind that a fraction's denominator (bottom) cannot be 0.
Interval Notation: [0,∞)
Set-Builder Notation:{x|x≥0}
The set of all valid y values constitutes the range.
Interval Notation:(-∞,0]
Set-Builder Notation:{y|y≤0}
For calculation of inverse:
Interchange the variables x=-√ySolve for yy=x²Replace y with f^-1(x)f^-1(x)=x²∴Domain of given function is [0,∞),{x|x≥0}
Range of given function is (-∞,0],{y|y≤0}
Inverse of given function is x²
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, If two angles add up to 90°, then they are not supplementary
What’s the contrapositive?
Answer:
supplementary means the angles add upto 180 degrees. The name for 2 anglew which add upto 90 degrees is "complimentary".
x - 5 - y + 12y - 10 combining like terms?
Answer:
-15+x+11y
Step-by-step explanation:
How to Solve
-15+x-y+12y < ------ Subtract the values -5 and -10
-15+x+11y < ----- Combining like terms -y−y and 12y12y
Please help me please help me please help me
Answer:
See attached graph for the rotated figure
The incorrect image point from the choices given is the first choice T'(-3, -2). T' should have coordinates (-3, 2)
Step-by-step explanation:
When a point A(x, y) on the XY coordinate system is rotated 180° (either clockwise or anticlockwise) the coordinates of the new point A' will be (-x, -y). Thus the new coordinates will be the negative of the original coordinates
Looking at the figure and following the above rule we get the following results for original and rotated coordinates by 180°
Original Coordinates(x, y) Rotated 180 Coordinates (-x, -y)
K(-1, -1) K'(1, 1) (-1 becomes 1)
P(0, -1) P'(0, 1) (0 stays at 0)
T(3, -2) T'(-3, 2)
Q(0, -4) Q'(0, 4)
To get the rotated image draw the new point coordinates and connect them
Suppose you randomly choose two cards from a thoroughly shuffled deck. If you put the first card back in the deck before you draw the second, what is the probability that the first card is an ace and the second card is a king?.
If you randomly choose two cards from a thoroughly shuffled deck and if you put the first card back in the deck before you draw the second then the probability that the first card is an ace and the second card is a king is 0.59%.
The probability that the first card is an ace and the second card is a king can be calculated as follows,
Initially, divide the expected outcomes by the total possible outcomes
As a deck has a total of 52 cards, the total possible outcomes are considered to be 52
A deck consists of 4 aces and 4 king cards
Hence,
the probability that the first card is an ace = 4 / 52
the probability that the second card is a heart = 4 / 52
The probability that the first card is an ace and the second card is a heart can be determined by multiplying the probability of an ace with the probability of heart,
Probability = (4/52)(4/52)
Probability = 0.0059
Converting into percentage,
Probability = 0.0059 × 100
Probability = 0.59%
Hence the probability that the first card is an ace and the second card is a king is calculated to be 0.59%.
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DUE ASAP PLS HURRY
5. A bird is at 20 feet above sea level. A fish is 14 feet below sea level. What is the difference?
Simplify each expression. 5³/₃ . 5¹/₂
The simplified form is = 3.53553
Simplify is to make something less complicated or much less cluttered. An instance of simplification is when you provide an explanation for a difficult math idea in truly smooth phrases for a kid to understand. An example of simplifying is whilst you chop out a whole lot of the activities that were making you busy and careworn. To turn out to be less difficult.
The phrase simplifies the approach to make something simpler to do or understand. So, by lowering or simplifying the fractions approach we make the fraction as simple as viable. We do this by dividing the numerator and the denominator via the biggest range that may divide into each number precisely.
Converting mixed numbers to an improper fraction,
[tex]5^{1}. 0.5^{1/2}[/tex]
= 5* 0.70710
= 3.53553
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One number is times a first number. A third number is 100 more than the first number. If the sum of the three numbers
When a number is 3 times a first number. A third number is 100 more than the first number and the sum of the three numbers is 450, the numbers are 70, 170 and 210.
How to calculate the numbers?Let the first number = x
Second number = 3x
Third number = x + 100
Sum = 450
The numbers will be:
x + 3x + x + 100 = 450
5x + 100 = 450
5x = 450 - 100
5x = 350
Divide
x = 350 / 5
x = 70
First number = 70
Second number = 3x = 3 × 70 = 210
Third number = x + 100 = 70 + 100 = 170
Therefore, the numbers are 70, 170 and 210.
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One number is 3 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 450 , find the numbers.
Salma bought two pounds of strawberries for $14.40. What is the price, in dollars per ounce of strawberries?
Salma bought 32 ounces of strawberries and the price in dollars per ounce of each strawberries is 0.45
In this question, Salma bought two pounds of strawberries for $14.40
We need to find the price, in dollars per ounce of strawberries
We know that 1 pound = 16 ounces
2 pounds of strawberries = 2 × 16 ounces of strawberries
= 32 ounces of strawberries
By unitary method, the required price is,
14.40 ÷ 32 = 0.45 dollars per ounce
Therefore, Salma bought 32 ounces of strawberries and the price in dollars per ounce of each strawberries is 0.45
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6 different colored tiles are available to make a pattern in a row of floor tile. How many possible diffrent 4-color patterns are possible if no colors may be repated
If 6 different colored tiles are available to make a pattern in a row of floor tile. The number of possible different 4-color patterns that are possible if no colors may be repeated is: 360.
Possible different color patternsGiven:
Different colored tiles=6
Different color patterns=4
There are 6 different colored tiles if one colored tiles is pick there will be 5 colored tiles, if two colored tiles is pick there will be 4 colored tiles, if three colored tiles is pick there will be only 3 colored tiles left.
Hence,
Possible different color patterns=(6×5×4×3)
Possible different color patterns=360 ways
Therefore If 6 different colored tiles are available to make a pattern in a row of floor tile. The number of possible different 4-color patterns that are possible if no colors may be repeated is: 360.
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Find the inverse of each function. Is the inverse a function?
f(x)=1.5 x²-4
If the function be f(x) = 1.5 x² - 4 then the inverse of the function is [tex]f^{-1}[/tex](x) = 3x - 4
What is meant by inverse function?An inverse function, also known as an anti function, is a function that can be reversed into another function. Simply put, if any function " f " takes x to y, then its inverse will take y to x. The inverse function is denoted by f-1 or F-1 if the function is denoted by ' f ' or ' F '.
Let the given function be f(x) = 1.5 x² - 4
To find the inverse of the function
[tex]f^{-1}[/tex](x)
To differentiate f(x) with respect to x
[tex]f^{-1}[/tex](x) = 2x(1.5) - 4
simplifying the above equation, we get
[tex]f^{-1}[/tex](x) = 3x- 4
Therefore, the inverse of f(x) = 3x - 4
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5 2/3 divided by 3??........................
Answer:
The answer is 17/9.
Step-by-step explanation:
5 2/3 = 17/3
3 = 2 3/3
17/3 / 9/3
17/3 * 3/9
= 17/9
Q.27. If B is added to A, under what condition does the resultant vector
have a magnitude equal to A + B? Under what conditions is the resultant vector equal to zero?
Adding the additive inverse of B (that is, “-B” which must exist in every Vector Space . A+B-B = 0 -B A= -B
What is magnitude vector?
The distance between a vector's starting point P and ending point Q is its magnitude. The magnitude of PQ is represented symbolically as | PQ |. The Distance Formula can be used to determine a vector's magnitude if its start and end points' coordinates are known.The magnitude of a vector is the square root of the scalar product of that vector by itself.
l A l = [tex]\sqrt{A . A}[/tex]
l B l = [tex]\sqrt{B . B}[/tex]
l A + B l = [tex]\sqrt{( A + B ) . ( A + B ) } = \sqrt{AA + AB + BA + BB}[/tex]
l A + B l = [tex]\sqrt{l A l^{2} + l B I ^{2} + 2 .l A l l B l cos (angle) }[/tex]
In case |A+B| = |A| + |B|
That is the same as the condition that the squares are equal.
l A + B l² = ( l A l + l B l)² = l A l² + l B l² + 2|A||B|
|A||B| cos(angle)=|A||B|
|A||B|[cos(angle)−1]=0
This happens if and only if :
Either |A| or |B| or [cos(angle) - 1] must be zero.
In case |A| and |B| are not zero then cos(angle) = 1, that is : angle = 0
That means B = c*A where c is a positive constant. And, also when either A or B (or both) are the zero vector.
The second question is easier:
|A+B| = 0 implies A+B must be the zero vector.
A+B = 0
then, adding the additive inverse of B (that is, “-B” which must exist in every Vector Space)
A+B-B = 0 -B
A= -B
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For each pair of functions, find (g⁰ f)(x) and (f⁰g)(x) . f(x)=2 x²+x-7, g(x)=-3 x-1
For the pair of functions, (g⁰f)(x) is - 6 x ² - 3 x + 22 and (f ⁰g)(x) is - 18 x ² + 7 x - 5
The given questions asks to find (g⁰f)(x) and (f ⁰g)(x), that is, function of g in terms of f(x) and function of f in terms of g(x).
To find : (g⁰f)(x)
Step 1 : Write g (x)
=> g (x) = - 3x -1
Step 2 : Put f (x) in place of x in g (x)
=> g (f(x) = -3 ( 2 x ² + x - 7 ) + 1
=> g (f(x) = - 6 x ² - 3 x + 21 + 1
=> g (f(x) = - 6 x ² - 3 x + 22
=> (g⁰f)(x) = - 6 x ² - 3 x + 22
Similarly,
To find : (f ⁰g)(x)
Step 1 : Write f (x)
=> f (x) = 2 x ² + x - 7
Step 2 : Put g (x) in place of x in f (x)
=> f (g(x) = 2 ( -3 x - 1 ) ² + x - 7
=> f (g(x) = 2 - ( 9 x ² + 1 + 3 x ) + x - 7
=> f (g(x) = - 18 x ² + 2 + 6 x + x - 7
=> f (g(x) = - 18 x ² + 7 x - 5
=> (f ⁰g)(x) = - 18 x ² + 7 x - 5
Therefore, we get for the pair of functions, (g⁰f)(x) as - 6 x ² - 3 x + 22 and (f ⁰g)(x) as - 18 x ² + 7 x - 5
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HELP ME PLs!!
p+8=13
-26=b-3
t/6=3
WHY NOBODY IS ANSWER 956.03 in word form , Expaned form as a fraction, standard form , expanded form as a decimal
Nine hundred Fifty-Six and three hundreths
900 + 50 + 6 + 3/100
956.03
900+ 50+ 6+ .03
Linear equation (1, 4) and (6,-1)
The linear equation passing through (1, 4) and (6, -1) is y = -x + 5.
How to represent a linear equation?Linear equation can be represented in slope intercept form.
The line passes through the points (1, 4) and (6, -1).
The equation of the line can be represented as follows:
y = mx + b
where
m = slopeb = y-interceptTherefore, let's find slope using (1, 4) and (6, -1)
m = -1 - 4 / 6 - 1
m = - 5 / 5
m = -1
Therefore, let's find the y-intercept using (1, 4)
y = -x + b
4 = -1 + b
b = 4 + 1
b = 5
Therefore, the linear equation passing through (1, 4) and (6, -1) is y = -x + 5.
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Which function below is the inverse of f(x) = 4x-3? (1 point)
2
Of(x)=
O F¹(x) =
Of(x)=
2
4x-3
Or¹(x)=2x-3
=
2
3-4x
4
2x+3
4
Answer:Of(x)=
O F¹(x) =
Of(x)=
2
4x-3
Or¹(x)=2x-3
=
2
Step-by-step explanation:
Which function below is the inverse of f(x) = 4x-3? (1 point)
Each pair of values is from a direct variation. Find the missing value. (x, 12),(4,1.5)
The missing value of direct variation is 32
What is direct variation ?The direct variation property states that , whenever the division of values of two quantities is a constant value then there is same variation between these two corresponding values. Or we can also say that if the divisible nature of two corresponding values is constant, then one quantity is directly varies with second quantity.
Let say if x and y are two values and k is a constant value, then
According to direct variation
k = y / x or y = k x
In the given question,
Take the order pair (4,1.5)
As it is an direct variation, we can substitute it
y=k x
1.5 = k × 4
K=0.375
Now find the direct variation equation
y=k x
put value of 2nd pair and k in the eq.
12 = 0.375 × x
x = 32
Therefore, missing value is 32
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p(rolling an 8) with one regular die if you roll the die just once
p(rolling an 8) with one regular die if we roll the die just once is 0.
A regular die has 6 sides. One each side, a unique number is written from 1 to 6. Thus, when a regular die is rolled, the outcomes can be-
1, 2, 3, 4, 5, 6
Thus, the sample space = { 1, 2, 3, 4, 5, 6 }
The probability of getting any one of the numbers will be 1/6 as total number of outcomes are 6.
Now, we need the probability of rolling a 8.
As we can see 8 is not a value in the sample space.
Thus, P(rolling an 8) will be ⇒ 0/6 = 0. That is, 8 will never be rolled.
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50 points to whoever answers this
Answer:Vamos a convertir 420 kcal/h a una tasa de cal/min con estas tasas de conversion: Hay 60min en 1h Hay 1000cal en 1 kcal entonces 1000 x 420 = 420000 / 60 = 7000
The road was 3.7 miles long. After a rebuild, it was 2.6 times as long. How long was the road after rebuilding?
The road was 9.62 miles long after rebuilding.
How to calculate the length of the road ?
The road was initially 3.7 miles long
After a rebuild it was 2.6 miles as long
The new length can be calculated by multiplying the initial length which is 3.7 by 2.6
= 3.7 × 2.6
= 9.62
Hence, after the rebuild the road was 9.62 miles long
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solve the literal equation for y. 8z-3=5+4y
Answer:
Y = - 2
Step-by-step explanation:
Which expression is equivalent to −3/4÷(−8/12)?
The equivalent expression of the expression given as −3/4÷(−8/12) is 9/8
How to determine the equivalent expression?The expression is given as
−3/4÷(−8/12)
Rewrite the expression properly as
−3/4 ÷ (−8/12)
Express the expression as a product
So, we have
−3/4 ÷ (−8/12) = −3/4 x −12/8
Divide the common multiples
So, we have
−3/4 ÷ (−8/12) = −3/4 x −3/2
Evaluate the products
−3/4 ÷ (−8/12) = 9/8
Hence, the equivalent expression of the expression given as −3/4÷(−8/12) is 9/8
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7. You are driving at 45 miles per hour. Which of the following expressions should you use to determine how long it will take to get to Ventura? How long will it take?
Doing some Straight line graph work, need some answers please?
i) y = 5x + 6
Gradient = 5 and intercept = 6
ii) y = 5 - 6x
Gradient = -6 and Intercept = 5
1)(bi)x + y = 6
Gradient = - 1 and intercept = 6
ii) 5y = 10x + 5
Gradient = 2 and Intercept = 1
iii) 6x - 10y = 2
Gradient = 0.6 and intercept = - 0.2
2)ai) 4x + y + 2 = 0
The line that depicts it is line A
ii) 4x + 2y = 8
The line that depicts it is line C
iii) 2x - 4y = 8
The line that depicts it is line B
How to Interpret the Equation of a Line in Slope Intercept form?
1a) The general equation for a line in slope intercept form is;
y = mx + c
where;
m is slope or gradient
c is y-intercept
i) y = 5x + 6
Gradient = 5 and intercept = 6
ii) y = 5 - 6x
y = -6x + 5
Gradient = -6 and Intercept = 5
1)(bi)x + y = 6 can be rearranged in slope intercept form as;
y = -x + 6
Gradient = - 1 and intercept = 6
ii) 5y = 10x + 5
y = 2x + 1
Gradient = 2 and Intercept = 1
iii) 6x - 10y = 2
10y = 6x - 2
y = 0.6x - 0.2
Gradient = 0.6 and intercept = - 0.2
2)ai) 4x + y + 2 = 0
y = -4x - 2
Slope = -4 and intercept = -2 and the line that depicts it is line A
ii) 4x + 2y = 8
y = -2x + 4
Slope = -2 and intercept = 4 and the line that depicts it is line C
iii) 2x - 4y = 8
y = 0.5x - 2
Slope = 0.5 and intercept = -2 and the line that depicts it is line B
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Using Pythagoras' theorem, calculate the
length of PR.
Give your answer in centimetres (cm) and
give any decimal answers to 1 d.p.
?
R
37 cm
35.cm
✓ Scroll down
Q
The length of PR is 12cm using the Pythagorean theorem.
What is the Pythagorean theorem?The Pythagorean theorem, also known as Pythagoras' theorem, is a fundamental relationship between a right triangle's three sides in Euclidean geometry. According to this statement, the areas of the squares on the other two sides add up to the area of the square whose side is the hypotenuse. Three positive integers a, b, and c make up a Pythagorean triple if their sum, a² + b², equals their sum, c². A common way to write such a triple is (a, b, c), and a well-known example is (3, 4, 5).So, Pythagorean formula: [tex]c^{2} ={a^2+b^2}[/tex]
Now, insert the values in the formula as follows:
[tex]c^{2} ={a^2+b^2}\\37^{2} ={35^2+PR^2}\\37^{2} - 35^2={PR^2}\\PR^2 = 1369 - 1225\\PR^2 =144\\\\PR\sqrt{144} \\PR = 12\\[/tex]
Therefore, using the Pythagorean theorem the length of PR is 12cm.
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Shayla cuts 6 strips of ribbon to
make hair bows. When she is done,
she realizes that each strip is
I inch
8
too short. How does the total length
of the strips compare to what their
total length should have been?
Answer:
Step-by-step explanation: